Java Tutorial

Java is a widely used programming language known for its simplicity, object-oriented features, and platform independence. This guide will walk you through the basics of Java programming and its core concepts.

1. Java Basics

• Syntax: Java uses a C-like syntax with curly braces {} for code blocks.
• Variables: Declare variables with data types.
  Example: int age = 25;
• Comments: Single-line comments use //, multi-line with /* ... */.

2. Object-Oriented Programming (OOP)

Java supports OOP principles like encapsulation, inheritance, and polymorphism.

• Classes & Objects:

  class Person {
      String name;
      void greet() { System.out.println("Hello, " + name); }
  }
  

• Inheritance:

  class Student extends Person {
      void study() { System.out.println("Studying..."); }
  }
  

• Polymorphism: Method overriding allows different behaviors in subclasses.

3. Java Collections

Use data structures like ArrayList, HashMap, and LinkedList for efficient data handling.

Example:

List<String> fruits = new ArrayList<>();
fruits.add("Apple");
fruits.add("Banana");

4. Java Resources

For deeper exploration, check our Java Advanced Topics guide.